3. Call for help; activate the emergency medical services; call for an ambulance/doctor.

4. Start chest compressions. Place the heel of your hand on the center of the victim's chest. Put your other hand on top of the first with your fingers interlaced.

5. Press down and compress the chest at least 2 inches in adults. Allow complete recoil after each compression. Compress continuously with both hands at a rate of 100/minute or more (Compress to the tune of Bee Gee's song "Stayin' Alive.")

6. For lay or untrained rescuers, continue this Hands Only CPR - do continuous chest compressions until help arrives, an automated external defibrillator (AED) is available or the emergency personnel arrives, or the victim is revived back to life.

THE NEW STEP BY STEP GUIDE IN CPR FOR TRAINED RESCUERS:

IF A PATIENT/VICTIM SUDDENLY DROPS UNCONSCIOUS OR IS SEEN UNCONSCIOUS:

3. Call for help; activate the emergency medical services; call for an ambulance/doctor.

4. Start chest compressions. Place the heel of your hand on the center of the victim's chest. Put your other hand on top of the first with your fingers interlaced.

5. Press down and compress the chest at least 2 inches in adults. Allow complete recoil after each compression. Compress 30 times with both hands at a rate of 100/minute or more (Compress to the tune of Bee Gee's song "Stayin' Alive.").

6. After 30 compressions, you can now open the airway with a head tilt and chin lift.

7. Pinch to close the nose of the victim. Take a normal breath, cover the victim's mouth with yours to create an airtight seal, and then give two, one-second breaths as you watch the chest rise.

8. Continue cycles of compressions and breaths -- 30 compressions, two breaths - until help arrives, until an automated external defibrillator (AED) is available, until the victim is revived back to life, or until the emergency medical personnel takes over.

If the rescuer is unsure or not confident or hesitant about doing mouth to mouth breathing, or does not have a barrier device for mouth to mouth, he may just do compression only, or Hands Only CPR: press hard and fast in the center of the chest by pressing down with two hands compressing the chest 2 inches at a rate of at least 100 per minute.